Home / 80,758.56-111,458.76-48,495.36

Finding the Fourth Proportional to 80,758.56, 111,458.76 and 48,495.36

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Solution

The fourth proportional to 80,758.56, 111,458.76 and 48,495.36 is: 66,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,758.56 : 111,458.76 = 48,495.36 : x
  2. Step 2: Convert to fraction form
    80,758.56/111,458.76 = 48,495.36/x
  3. Step 3: Cross multiply
    80,758.56x = 111,458.76 × 48,495.36
  4. Step 4: Simplify right side
    80,758.56x = 5,405,232,691.35
  5. Step 5: Solve for x
    x = 5,405,232,691.35/80,758.56
  6. Step 6: Final answer
    x = 66,930.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.